Brush attachment for floor polishers



Sept. 14 1926. v A. A. sERvA BRUSH ATTACHMENT FOR FLOOR POLISHERS Spt. 14 1926.

0 A. A. SERVA BRUSH ATTACHMENT FOR F LOOR POLISHERS Filed Nov. 6;, 1924 2 Sheets-Sheet 2 gwuentoz A.A. 5072a ADAM A. s-nnvn, or cANTom oHIo;nssIGNon To THE"unITEnnLEc Rro' ooMPAny,-. j

or cAN oN, 01110, A CORPORATION-OEOEIQ- 1 RUSH ATTACHMENT Tori FLbqIt minutes." 1

Application filed November 6, 1924. seriaino. 748,065.

This invention relates to brushes for clean ing and waxing'hardwood floors and similar ply the wax or cleaning agent, after which the brush is detached and the floor or other surface is polished with the floor polisher in the usual manner.

The above and other objects may be attained by providing a rearwardly and downwardly inclined plate upon the upper surface of the brush for the purpose of maintaining stability and preventing tilting of the brush, as well as to equalize the pressure over the entire brush surface.

This plate has a curved rib at its rear edge to engage the rear edge of one side member of the polishing head, a pair of spring arms being provided upon the sides of the brush and having apertures for engagement with transversely disposed bosses upon the polishing head.

The improved brush attachment is illustrated in the accompanying drawing, in which Figure 1' is a side elevation of the floor polisher, showing the improved brush at tacliment connected thereto; v e

Fig. 2, atransverse section upon the line 2 2, Fig. 1; and I Fig. 3, a detached perspective view of the brush attachment;

Similar numerals refer to similar parts throughout the drawing. or

The floor polisher for which the present brush attachment is intended, comprises a V-shaped polishing head having the two converging side members 1, a vertical longitudinal rib 2, to which the operating handle 3 is connected, and a transverse wall 4 the head.

having aboss 5 upon each end forthe at- I tachment of the spring 6,.which retains the polishing cloth 7 upon the head..-

The back 80f the brush sof a width slightly greater than the width of the p olishconsiderably longer than ing head, andois A metal plate length as one faceof thepolishing head, is

' mounted upon the'back in a rearwardly in clined position, the rear portion of the plate being attached to the back .of the brush as by tacks 11 or the like, the rear free end of 9 of substantially the same the plate'being curved upward and forward,

as shown at 12, to engage the rear curved.

edge of one side member .of. the polishing f head.- A downwardly inclined flange 13 is provided at the forward end of the. plate9 and connected to the forward end of the back of the brush, as byetacks 14 or the like.

A spring arm 15 is rigidly attached to each side edge of the brush back at a point substantially midway between the ends of the plate 9, and is provided with the inwardly disposed portion 16, terminating in the oif-set end 17 provided With an opening 18 arranged to receive the adjacent boss 5, as shown in Figs. 1 and 2. For the purpose of permitting the spring arms to be quickly centered upon the bosses, an outwardly curved spring finger 19 may be, formed at each side of the aperture 18.

From the above, it will be obvious that when it is desired to apply thewaX or clean-' ing agent to the floor, it is only necessary to engage the rear end'of one of the side members of the polishing head against the curved rear end 12 of the plate 9,'and to snap the spring arms 15 into position 0V8 the ends of the bosses 5, thus retaining the brush upon the polishing head.

By inclining the plate 9, the weight of" the polishing head is thrown further toward the rear end of the brush, distributing the 1 weight more evenly than if the head were located in the normal position, thus maintaining the-brush in its normal position and 1 preventing tilting of the same. I

The brush attachment is thus applicable to the form of floor polisher which is illustrated and described in my co-pending application executed of even date with. the

loo

present application, and no change in said fl00r pollsher is required in order to acc0mmodate the brush.

'1 claim j a I An attachment for a V-shaped polisher head formed of a pair of converging-sidemembers having lateral. bosses betweensaid slde members, sald attachment comprising a brushhaving a rearwardly inclined upper surface for contact with either of said side 10 =Intestimony that I claim the above, I 15 have hereunto subscribed. my name;

ADAM A. SERVA. 

